United States. War Department. Division of Military Aeronautics · Washington, Govt. print. off. · leaf 31
CADET RECEIVING FINAL INSTRUCTIONS BEFORE GOING ON A FLIGHT ALONE. This cadet has completed his preliminary course and is about to start on a solo flight. … STARTING OFF ON A FLIGHT. 1 Oar-11
Aeronautics, Military · Medicine, Military · Air pilots
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
